Faraday to William Pigott   23 February 1863

23 Feby 1863¹ | Royal Institution

Dear Sir

I send you back the various papers of the permanent lime light company. The last letter takes up altogether a new position of the light - & sends a very imperfect drawing showing no arrangement of the place of Gas jets and no means of sending the rays parallel[.] It speaks of a model but not of a full sized or practical apparatus.

I can simply refer you back to my letter of the 27th of August of last year². But even before the liberty of trying the lime light under the conditions there stated could be granted I think that a full sized first order lamp should be shewn in London sustained in an effectual burning condition & in a large place for 14 or 16 hours together. As the first order Fresnel lamp with a first order panel before it could be placed up about 20 or 30 feet from it side by side to a very useful comparison of the one with the other though adverse to the Fresnel could be made³.

I am Dear Sir | Your Most faithful Servant | M. Faraday

Captn. Pigott | Deputy Master | &c &c &c